Otto Ernst

Otto Beit in his study at Belgrave Square, 1913 William Orpen

Ernst Moritz Arndt Julis Amatus Roeting

Christian Oersted Anonymous

Radio Maxim Poster Otto Ernst

Otto Lilienthal, German aeronaut, early 20th century Unknown

Otto Muller Playing Chess, 1913 Ernst Ludwig Kirchner

Tannhäuser and Venus, 1873 Anonymous

Otto I (1848-1916). King of Bavaria (1886-1913). Anonymous

Gut Neverstaven, near Oldesloe, 1859 Otto Speckter

The Giant German Ogre French School

Erich Heckel and Otto Mueller playing Chess, 1913 Anonymous

Otto von Bismarck in his Study German School

Otto IV of Brunswick French School

Otto von Guericke, German inventor, engineer and physicist, 1672 Unknown

Otto I of Bavaria prevents a defeat of Emperor near Verona, 1840 Anonymous

Portrait of Otto von Bismark Anonymous

Otto I Submitting to Berenger II and the Triumph of Italy German School

Otto I of Bavaria prevents a defeat of Emperor near Verona Johann Jakob Kirchhoff

The Painter Otto Eckmann 1897 Lovis Corinth

Otto von Bismarck as Prussia's Envoy to the Diet of the German Confederation in Frankfurt, 1855 Jakob Becker

Portrait Of Otto Von Bismarck, 1870 Franz Seraph von Lenbach

Prince Otto von Bismarck, 1884 Franz Seraph von Lenbach

Portrait of Otto Brahe, Captain of a Company of Danes to Repartition Zealand, Entered Service of Brandenburg in 1610 Anonymous

Otto von Bismarck, 1886 Reinhold Begas